Marc Sweigart grew up outside Fredericksburg, VA, and graduated from Stafford High School. He graduated from James Madison University with a BA in History and began his teaching career in 1996. He taught secondary social studies and coached basketball and soccer in different capacities throughout his 15-year teaching career. In 2011, he came to ERHS as an assistant principal before transferring to TAHS in 2013. He became the principal of ERHS in the 2021-2022 school year.
Marc Sweigart and his wife Deb live in Bridgewater. They met at JMU and have been married for 28 years. They have a son who lives and works in Va Beach and a daughter who lives and works in Harrisonburg.